I am wondering this myself - I have a Cisco ASA 5505 that distributes DHCP IPs to wireless clients for 6 hours at a time. I need to track usage of the DHCP by MAC address for at least a week at a time - Ie get a report of
MAC address IP assigned to
start time of DHCP lease
end time of DHCP lease
Is this possible with the ASA or do I need something like the Solarwinds User Device Tracker? I have a DHCP client lease table, but it only shows active clients - I need a recent history, run daily or weekly, if possible.